@zaivala is it a fresh install?
If so, and if you want Rolling I’d suggest to install one of the latest builds.
We are going to release OM Lx 4.3 so there may be too many differences to safely upgrade Rock published long time ago
ISO build 347 is known working fine:
With regard to
we have a great tool now available: DnfDrake.
If you prefer GUI, it is the only one I feel comfortable to suggest.
It has been recently added as a module to OM Welcome, this means that you need just one click to install it and enjoy
Just remember to switch to ‘Distro Update’ (in Extra options) soon after DnfDrake installation